Corsair, you need to be aware of the trade off before doing any modifications.

If you increase the size of your tires, you gain stability and your ride will look better but it will be less comfortable, consume more fuel and make it accelerate slower.

You could put performance bracing. It will make your ride corner better but the NVH will be worse.

Manufacturers spend a lot of time setting up the car to get the balance right. Honda tend to go for harder suspension to get better cornering while Toyota go for comfort at the expense of the cornering.

Basically, if you increase one thing, you will decrease something else.

More extreme enthusiasts will have a track car or an off road monster. Those cars have been modified for one specific purpose. They are unsuitable for driving on normal roads because of their modifications.